Ms. Kerley runs 1 2/9 miles on Ms. McDonald is making cupcakes.
She has 4 % cups of sugar in the
Monday, 2 1/9 miles on Tuesday,
and 4/9 miles on Wednesday. She pantry. The cake requires 2 % cups
runs 5 8/9 miles from of sugar and the icing requires 2 "'
Monday-Thursday. How many miles cups of sugar. Does she have
did she run Thursday? enough sugar to make the cake and
icing?
Fmd the \'"lluc or cach C'\pR~sion in lfM'C'U term~.
3{ - I ~
9.
- ..
6 3! _ 2s
2 9
II.
10 - 1J'
1TT
I:?. I IS2 + Jj
Subtract the given decimal numbers:
(i) (ii) (iii)
7. 9 2 6 7. 0 9 384.37 (iv) 11 0. 0 5
4. 4 2 - 25.02 - 89.45 - 98.15
(v) (vi) (vii) (vi ii}
77 .007 412.999 69.386 152.08
54.126 - 179.010 - 59.477 - 11.75
Word problems on subtraction of decimals:
(i) A shopkeeper has 204.850 kg of rice in his shop.
He sold 150.900 kg of rice. How much rice was left in
the shop?
(ii) What is to be added to the difference (50.91 -
10.146) to get 100?
Add the given decimal numbers
(i) (ii) (iii) (iv}
5 . 62 21 . 08 134 . 24 12 . 9 6
+ 3 . 31 + 13 . 72 + 21 . 07 + 4.50
(v) (vi) (vii ) (viii)
6 . 218 205.392 86.512 190 . 25
+ 83.072 + 713.227 + 22 . 052 + 11 . 05
. Word problems on addition of decimals:
(i) Peter has three iron rods of length 5.72 m, 8.9 m
and 7.78 m. What is the total length of the three rods?
(ii) Ron bought a book for$ 36.25, a pen for$ 9.50
and a ruler for$ 3.75. How much money did he spend
in all?
Find 1hc value of each C~JW"CMion in lowe'\t tcnn-..
5· I sI +-r
17
- 23
., !+.!J
~ 2 R
_ !!
12
6 .!1
6
+ 3~ - 3!2 10 3!J + I ~
4
- 11
3
II ~ - (I ll
' 3 12
- ~)
4
+2 2
.l
"· 4 -,- 1 M
·
I .!!
12
- ( I J4 - !)
8
12 23-1 - 't
:
3 + 4
1-
5
Change each of the fractions into equivalent
fractions having denominator 12:
(i) 1/
2
= 12 xX 66 =6/12
. Which of the following pairs of fractions are
equivalent and which are not:
3 12
(ii) / 7 and / 2a
5 15
(iii) / 9 and / 27
(iv) 36/44 and 9/11
4 5
(v) / 5 and / 4
5 27
(vi) /9 and / 15
. Equivalent Fractions
.
.) 1 □
(I 5 = 15
5 25
(iii) □ = 30 (iv) 8
11
= D
77
Compare each pair of decimals using the symbols >,< or=.
1} 43.5 □ 43.12 2} 18.49 □ 19.9
3} 21.75 □ 21.75 4} 4.63 □ 4.3
5} 5.17 □ 5.4 6} 10.35 □ 10.35
7) 47.31 □ 39.73 8) 25.6 □ 25.9
9} 24.5 □ 24.5 10) 7.7 □ 6.95
11} 36.62 □ 36.4 12) 29.3 □ 29.27
13) 12.7 □ 12.8 14) 6.1 □ 6.1
15} 40.24 □ 40.24 16} 28.5 □ 28.3
)
